.m-bigsubtitle
  margin-bottom 20px
  font-family  'MicrosoftYaHei'
  position relative
  .title
    font-size 34px
    color #222222
    span 
      display inline-block
      font-size 26px
      color #989898
      margin-left 12px
  &.small 
    .title
      font-size 34px
      color #fff
      span 
        display inline-block
        font-size 26px
        color #989898
        margin-left 12px
  &.step1
    &:before
      content ""
      width 67px
      height 52px
      background-image url('../image/bigcase-step1.png')
      background-repeat no-repeat
      background-size 67px 52px
      position absolute
      top -34px
  &.step2
    &:before
      content ""
      width 85px
      height 54px
      background-image url('../image/bigcase-step2.png')
      background-repeat no-repeat
      background-size 85px 54px
      position absolute
      top -39px
  &.step3
    &:before
      content ""
      width 87px
      height 53px
      background-image url('../image/bigcase-step3.png')
      background-repeat no-repeat
      background-size 87px 53px
      position absolute
      top -44px
  &.step4
    &:before
      content ""
      width 92px
      height 57px
      background-image url('../image/bigcase-step4.png')
      background-repeat no-repeat
      background-size 92px 57px
      position absolute
      top -35px
.m-bigcase
  .pjdesc
    height 1046px
    background-image url('../image/bigcase-top.png')
    background-repeat no-repeat
    padding 1px 30px
    text-align center
    line-height 1
    .title
      font-size 34px
      color #0acdf0
      margin-bottom 10px
      margin-top 450px
    .subtitle
      font-size 20px 
      color #ffffff
      margin-bottom 20px
    .desc
      font-size 24px
      color rgba(255,255,255,0.41)
      line-height 36px
      text-align left
    .pjdesc-img
      background url('../image/bigcase-pj.png') no-repeat
      margin-top 58px
      width 689px
      height 339px
  .think
    margin 217px 0 58px 0
    padding 0 30px
    .desc
      font-size 24px
      color #676767
      line-height 30px
  .proto
    overflow hidden
    padding 82px 30px 57px
    background #283ead
    >img 
      float left
    .msg
      width calc(100% - 369px)
      float right
      .desc
        font-size 24px
        color rgba(255,255,255,0.41)
        line-height 30px
        letter-spacing 0px
  .colors
    padding 106px 30px 60px
    .desc
      font-size 24px
      color #676767
      line-height 30px
      margin-bottom 29px
    .lists
      display flex
      justify-content space-between
      .list
        height 140px
        width 140px
        line-height 140px
        text-align center
        font-szie 14px
        &:nth-child(1)
          background url('../image/bigcase-color1.png') no-repeat
          color #1d2cf5
          background-size cover
        &:nth-child(2)
          background url('../image/bigcase-color2.png') no-repeat
          color #ffc028
          background-size cover
        &:nth-child(3)
          background url('../image/bigcase-color3.png') no-repeat
          color #219bf0
          background-size cover
  .details
    padding 60px 30px 50px 40px
    background #283ead
    overflow hidden
    .msg
      float left
      width 348px
      margin-top 39px
      .desc
        font-size 24px
        color rgba(255,255,255,0.41)
        line-height 34px
        letter-spacing 0px
    .chart
      width 293px
      float right
      border 1px solid #5e72d7
      margin-top 42px
      .title
        margin-top 12px
        text-indent 21px
        font-size 22px
        color #ffb924
        overflow hidden
        margin-bottom 35px
        span 
          float right
      img
        margin-bottom 30px
        margin-left 10px
      .lists
        padding 0 6px
        display none
        .list
          font-size 9px
          color #6f87d6
          line-height 1
          margin-bottom 8px
          overflow hidden
          &.active
            color #ffffff
          span 
            float right
  .othercase
    display flex
    justify-content space-between
    padding 30px 50px
    a  
      display block
      width 160px
      height 48px
      border 1px solid #757576
      text-align center
      line-height 48px
      font-size 24px
      color #757576
  
      

